File is imported but still not defined

[aj3423]

A simple contract that imports ERC20:

// SPDX-License-Identifier: MIT
pragma solidity > 0.8.0;

import {ERC20} from "@openzeppelin/contracts/token/ERC20/ERC20.sol";

contract Test is ERC20 {
}

Compile it with solang:

solang compile --target solana -I /usr/local/lib/node_modules/ test.sol

The ERC20.sol file exists and it's imported successfully, but it still shows error:

error: 'ERC20' not found
  ┌─ /e/sol/1/test.sol:6:18
  │
6 │ contract Test is ERC20 {
  │                  ^^^^^

Is this a bug? I'm using the latest version 0.2.1.

[seanyoung]

I can't reproduce this. Can you give a copy of your ERC20.sol please

[aj3423]

@seanyoung I just tried the new release 0.2.2, same problem.
The test file: test.sol.zip
The ERC20.sol: ERC20.sol.zip

My compile command:

solang compile --target solana -I /usr/local/lib/node_modules/ test.sol

The result:

The @openzeppelin contracts and the ERC20.sol do exist, the solc works fine:

/e/sol/2 > solc --base-path . --include-path /usr/local/lib/node_modules/ test.sol
Compiler run successful. No output generated.

[seanyoung]

The issue is that ERC20 needs work for Solana, see #1174